問題詳情

42.tWhat is the pH of the 1.0 M Na2HAsO4 solution (H3ASO4: pXa1 = 2.24, pXa2 = 6.96, pXa3 = 11.50)?
(A)t2.24
(B)t4.60
(C)t6.96
(D)t9.23
(E)t11.50

參考答案

答案：D

統計：A:0,B:1,C:1,D:4,E:1

難度：計算中